Search Results for author: Uthaipon Tantipongpipat

Found 10 papers, 5 papers with code

Image Cropping on Twitter: Fairness Metrics, their Limitations, and the Importance of Representation, Design, and Agency

2 code implementations18 May 2021 Kyra Yee, Uthaipon Tantipongpipat, Shubhanshu Mishra

However, we demonstrate that formalized fairness metrics and quantitative analysis on their own are insufficient for capturing the risk of representational harm in automatic cropping.

Fairness Image Cropping

Differentially Private Synthetic Mixed-Type Data Generation For Unsupervised Learning

1 code implementation6 Dec 2019 Uthaipon Tantipongpipat, Chris Waites, Digvijay Boob, Amaresh Ankit Siva, Rachel Cummings

We introduce the DP-auto-GAN framework for synthetic data generation, which combines the low dimensional representation of autoencoders with the flexibility of Generative Adversarial Networks (GANs).

Synthetic Data Generation Vocal Bursts Type Prediction

Differentially Private Mixed-Type Data Generation For Unsupervised Learning

1 code implementation25 Sep 2019 Uthaipon Tantipongpipat, Chris Waites, Digvijay Boob, Amaresh Siva, Rachel Cummings

In this work we introduce the DP-auto-GAN framework for synthetic data generation, which combines the low dimensional representation of autoencoders with the flexibility of GANs.

Synthetic Data Generation Vocal Bursts Type Prediction

Multi-Criteria Dimensionality Reduction with Applications to Fairness

2 code implementations NeurIPS 2019 Uthaipon Tantipongpipat, Samira Samadi, Mohit Singh, Jamie Morgenstern, Santosh Vempala

Our main result is an exact polynomial-time algorithm for the two-criterion dimensionality reduction problem when the two criteria are increasing concave functions.

Dimensionality Reduction Fairness

Maximizing Determinants under Matroid Constraints

no code implementations16 Apr 2020 Vivek Madan, Aleksandar Nikolov, Mohit Singh, Uthaipon Tantipongpipat

Our main result is a new approximation algorithm with an approximation guarantee that depends only on the dimension $d$ of the vectors and not on the size $k$ of the output set.

2k Experimental Design

$λ$-Regularized A-Optimal Design and its Approximation by $λ$-Regularized Proportional Volume Sampling

no code implementations19 Jun 2020 Uthaipon Tantipongpipat

In this work, we study the $\lambda$-regularized $A$-optimal design problem and introduce the $\lambda$-regularized proportional volume sampling algorithm, generalized from [Nikolov, Singh, and Tantipongpipat, 2019], for this problem with the approximation guarantee that extends upon the previous work.

regression

FAST DIFFERENTIALLY PRIVATE-SGD VIA JL PROJECTIONS

no code implementations1 Jan 2021 Zhiqi Bu, Sivakanth Gopi, Janardhan Kulkarni, Yin Tat Lee, Uthaipon Tantipongpipat

Differentially Private-SGD (DP-SGD) of Abadi et al. (2016) and its variations are the only known algorithms for private training of large scale neural networks.

Fast and Memory Efficient Differentially Private-SGD via JL Projections

no code implementations NeurIPS 2021 Zhiqi Bu, Sivakanth Gopi, Janardhan Kulkarni, Yin Tat Lee, Judy Hanwen Shen, Uthaipon Tantipongpipat

Unlike previous attempts to make DP-SGD faster which work only on a subset of network architectures or use compiler techniques, we propose an algorithmic solution which works for any network in a black-box manner which is the main contribution of this paper.

Measuring Disparate Outcomes of Content Recommendation Algorithms with Distributional Inequality Metrics

no code implementations3 Feb 2022 Tomo Lazovich, Luca Belli, Aaron Gonzales, Amanda Bower, Uthaipon Tantipongpipat, Kristian Lum, Ferenc Huszar, Rumman Chowdhury

We show that we can use these metrics to identify content suggestion algorithms that contribute more strongly to skewed outcomes between users.

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